Dude, look at my profile. I'm black. I study chinese at the university and am interested in asian culture. but i'm from good old chicago, man. you pretty much lost when you didn't provide any prof, but just said: "ur a chinese."
Let's see some prof bro. back up your stuff. check yo sources before you lose.
By the way, i got the name from a combination of the chinese wuxia guo xiaotian and dragonball Z.
show yo stuff environomist.

Flaw in your argument buddy, you did not define the statement "you are chinese", but simply stated the definition of chinese and applied it to my name.
The meaning of the statement "you are chinese" typically means that the person, not the name, is of chinese origin. furthermore, when your definitions are applied, the appropriate words cannot be substituted out of the sentence: "you", and "xiaotian-Z" are both referring to a person, so when you use proper substitution, the sentence would say something like, a person is a word or a statement written or spoken mostly in the Chinese language.
while your mathematical technique of substitution is a smart comparison, it's not right. anytime you make a substitution in math, it's to make the equation more solvable; however, the substituted terms must be put back into the equation for a final answer (see u substitution; Calculus). also, you violated the definition part of the english language by substituting "you" (a person) and "xiaotian-Z" (also referring to a person) and turned "xiaotian-z" into a definition that is referring to a group of words or statement. substitution of two words in one sentence must mean that the definitions of the two words have similar meanings and still make sense when put back into the original sentence or used interchangeably with old terms.
your substitution changes the meaning of the original topic, thus violating rules of a set debate.